Comedy Central's Stephen Colbert testified in front of a House Judiciary Sub-committee on immigration. His testimony is below. Most of it is very funny, but he gets serious in the back and forth between members of Congress and himself on the issue.
Apparently, Colbert pulled a fast one on Congress and submitted serious testimony in advance, but he changed his testimony as he delivered it. Read more here.
Several GOP members didn't get the joke...of course...I wouldn't expect them to get it.